Altair HyperStudy 2021 Release Notes

New Features

Sampling Fit
New approach that combines Space-filling DOE and Fit. It samples the design space and builds a fit model at user-defined intervals until desired cross-validation R2 value is achieved.
Side-by-Side Post-Processing
In Post-Processing, a new capability has been added to simultaneously visualize results of different forms in multiple windows.
Altair Inspire Studio Model
Inspire Studio is a hybrid modeling and rendering environment for 3D conceptual designs. The new connection enables users to perform geometric changes directly within HyperStudy.
Model Conditions
Defining conditions for models is now supported. Users can control the sequence of executions and whether a model is to be executed or not.


Periodic Report Generator
Periodic data extraction during evaluation is now supported.
Multi-Execution for Each Model
Multi-Execution can now be applied to multiple independent models running in parallel.
Registering Python Function Registration via GUI
External python functions can now be registered in the user interface as an alternative to preference file (*.mvw) route.
ANOVA Calculation
Previously, ANOVA was a mandatory part of building Least Square Regression models. It is now disintegrated from the model building process and is optional in Post-Processing.
Improved Computational Efficiency of HyperStudy Fit Model
Pyfit file is used in memory for evaluation which provides computational efficiency.
Linked Variables in Trade-Off Panel
Linked variables can now be displayed in Trade-Off panel upon request.
Enhancements in AREA Tool
Two enhancements have been introduced: normalized area difference and logarithmic scaling option for highly dynamic curves.
New Layout for Solver Input Argument Dialog
Arguments are now classified in two categories: Standard and Solver Arguments. Arguments are appended and visualized in stacked form.
Automatic Preview in Expression Builder
Expression field is divided into two windows to accommodate the expression and its preview. Preview update is automatic by default. However, users can opt for manual updates.
Maximize Levels for Discrete Variables in DOE
One-click option has been added to maximize levels for discrete variables in applicable screening DOE methods. Maximum and minimum levels along with values are displayed in table form.
Monitory HyperStudy in Batch Mode During Evaluation
Monitoring HyperStudy in batch mode is now supported. There are three available options to manipulate the process: exit HyperStudy, stop evaluation, and change multi-execution count.

Resolved Issues

  • Evaluation times were incorrectly reported.
  • Removing multiple models at the same time resulted in error.
  • In Verification Approach, Delta Plots were incorrectly scaled in some cases.
  • Adding a goal in approaches other than optimization invalidated the definition.
  • Discrete design variables were not supported in Workbench model.


  • Future versions of HyperStudy will remove support for upgrading studies constructed with version 14.0 and earlier.
  • Verification approach can no longer be added as a standalone approach anymore. However, it remains available within Fit and Optimization approaches.
  • Korean Language is no longer supported.
  • Multi-execution for HyperStudy Fit model is no longer supported.
  • In Solver Input Arguments, keyword filespec has been replaced with filepath. Keywords filebasename and fileroot are decommissioned.